Distinctive signals of boosted dark matter from its semiannihilation
Distinctive signals of boosted dark matter from its semiannihilation
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DOI：
10.1103/physrevd.105.043007
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发表时间：
2021-09
影响因子：
5
通讯作者：
Takashi Toma
中科院分区：
文献类型：
--
作者：
Takashi Toma
暗物质可以通过各种机制来推动，这些机制可能会产生与正则暗物质不同的特征信号。我们发现，半湮灭χχ→χν产生的信号不同于其他半湮灭和标准暗物质湮灭过程。由于半湮灭过程产生的被增强的暗物质被视为高能中微子，暗物质的总通量和伴随的中微子在接近暗物质质量的能量中产生双峰。我们表明，使用未来的大体积中微子探测器，如深地下中微子实验和超神冈的中微子探测器，将有可能探测到太阳产生的这两个粒子。电子邮件：∗toma@Staff.kanazawa-U.S.ac.jp ar X iv：2 10 9.05 91 1v 2[HPPH]19 Ja n 20 22
Dark matter can be boosted by various mechanisms, which may produce characteristic signals that are different from those of canonical dark matter. We show that the semi-annihilation χχ → χν produces signals that are distinctive from those of other semi-annihilation and standard dark matter annihilation processes. Because the boosted dark matter produced by the semi-annihilation process is regarded as a high-energy neutrino, the total flux of the dark matter and the accompanying neutrino produce double peaks in the energy close to the dark matter mass. We show that it will be possible to detect both of the particles produced at the Sun using future large volume neutrino detectors such as those of the Deep Underground Neutrino Experiment and Hyper-Kamiokande. ∗toma@staff.kanazawa-u.ac.jp ar X iv :2 10 9. 05 91 1v 2 [ he pph ] 1 9 Ja n 20 22